Error status LEDs shown when device endpoint configuration fails to complete.

MIDI device demo no longer blocks if a note change event is sent while the endpoint is not ready.

13 files changed, 229 insertions, 138 deletions

diff --git a/Demos/Device/LowLevel/AudioInput/AudioInput.c b/Demos/Device/LowLevel/AudioInput/AudioInput.c
index 7757ef10c..50e7f4df4 100644
--- a/Demos/Device/LowLevel/AudioInput/AudioInput.c
+++ b/Demos/Device/LowLevel/AudioInput/AudioInput.c
@@ -109,13 +109,16 @@ void EVENT_USB_Disconnect(void)
  */

 void EVENT_USB_ConfigurationChanged(void)

 {

-	/* Setup audio stream endpoint */

-	Endpoint_ConfigureEndpoint(AUDIO_STREAM_EPNUM, EP_TYPE_ISOCHRONOUS,

-		                       ENDPOINT_DIR_IN, AUDIO_STREAM_EPSIZE,

-	                           ENDPOINT_BANK_DOUBLE);

-

 	/* Indicate USB connected and ready */

 	LEDs_SetAllLEDs(LEDMASK_USB_READY);

+

+	/* Setup audio stream endpoint */

+	if (!(Endpoint_ConfigureEndpoint(AUDIO_STREAM_EPNUM, EP_TYPE_ISOCHRONOUS,

+		                             ENDPOINT_DIR_IN, AUDIO_STREAM_EPSIZE,

+	                                 ENDPOINT_BANK_DOUBLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

 }

 

 /** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific

diff --git a/Demos/Device/LowLevel/AudioOutput/AudioOutput.c b/Demos/Device/LowLevel/AudioOutput/AudioOutput.c
index 7a9c6eca0..07418d5d9 100644
--- a/Demos/Device/LowLevel/AudioOutput/AudioOutput.c
+++ b/Demos/Device/LowLevel/AudioOutput/AudioOutput.c
@@ -136,13 +136,16 @@ void EVENT_USB_Disconnect(void)
  */

 void EVENT_USB_ConfigurationChanged(void)

 {

-	/* Setup audio stream endpoint */

-	Endpoint_ConfigureEndpoint(AUDIO_STREAM_EPNUM, EP_TYPE_ISOCHRONOUS,

-		                       ENDPOINT_DIR_OUT, AUDIO_STREAM_EPSIZE,

-	                           ENDPOINT_BANK_DOUBLE);

-

 	/* Indicate USB connected and ready */

 	LEDs_SetAllLEDs(LEDMASK_USB_READY);

+

+	/* Setup audio stream endpoint */

+	if (!(Endpoint_ConfigureEndpoint(AUDIO_STREAM_EPNUM, EP_TYPE_ISOCHRONOUS,

+		                             ENDPOINT_DIR_OUT, AUDIO_STREAM_EPSIZE,

+	                                 ENDPOINT_BANK_DOUBLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

 }

 

 /** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific

diff --git a/Demos/Device/LowLevel/CDC/CDC.c b/Demos/Device/LowLevel/CDC/CDC.c
index 3db4c1e55..99343894e 100644
--- a/Demos/Device/LowLevel/CDC/CDC.c
+++ b/Demos/Device/LowLevel/CDC/CDC.c
@@ -105,21 +105,30 @@ void EVENT_USB_Disconnect(void)
  */

 void EVENT_USB_ConfigurationChanged(void)

 {

-	/* Setup CDC Notification, Rx and Tx Endpoints */

-	Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,

-		                       ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

-	Endpoint_ConfigureEndpoint(CDC_TX_EPNUM, EP_TYPE_BULK,

-		                       ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

-	Endpoint_ConfigureEndpoint(CDC_RX_EPNUM, EP_TYPE_BULK,

-		                       ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

 	/* Indicate USB connected and ready */

 	LEDs_SetAllLEDs(LEDMASK_USB_READY);

+

+	/* Setup CDC Notification, Rx and Tx Endpoints */

+	if (!(Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,

+		                             ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

+	

+	if (!(Endpoint_ConfigureEndpoint(CDC_TX_EPNUM, EP_TYPE_BULK,

+		                             ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

+	

+	if (!(Endpoint_ConfigureEndpoint(CDC_RX_EPNUM, EP_TYPE_BULK,

+		                             ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

 }

 

 /** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific

diff --git a/Demos/Device/LowLevel/DualCDC/DualCDC.c b/Demos/Device/LowLevel/DualCDC/DualCDC.c
index 839d6d98e..1031068ad 100644
--- a/Demos/Device/LowLevel/DualCDC/DualCDC.c
+++ b/Demos/Device/LowLevel/DualCDC/DualCDC.c
@@ -116,35 +116,53 @@ void EVENT_USB_Disconnect(void)
  *  of the USB device after enumeration - the device endpoints are configured and the CDC management tasks are started.

  */

 void EVENT_USB_ConfigurationChanged(void)

-{

-	/* Setup CDC Notification, Rx and Tx Endpoints for the first CDC */

-	Endpoint_ConfigureEndpoint(CDC1_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,

-		                       ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

-	Endpoint_ConfigureEndpoint(CDC1_TX_EPNUM, EP_TYPE_BULK,

-		                       ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

-	Endpoint_ConfigureEndpoint(CDC1_RX_EPNUM, EP_TYPE_BULK,

-		                       ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

-	/* Setup CDC Notification, Rx and Tx Endpoints for the second CDC */

-	Endpoint_ConfigureEndpoint(CDC2_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,

-		                       ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

-	Endpoint_ConfigureEndpoint(CDC2_TX_EPNUM, EP_TYPE_BULK,

-		                       ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

-	Endpoint_ConfigureEndpoint(CDC2_RX_EPNUM, EP_TYPE_BULK,

-		                       ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-							   

+{							   

 	/* Indicate USB connected and ready */

 	LEDs_SetAllLEDs(LEDMASK_USB_READY);

+

+	/* Setup CDC Notification, Rx and Tx Endpoints for the first CDC */

+	if (!(Endpoint_ConfigureEndpoint(CDC1_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,

+		                             ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

+	

+	if (!(Endpoint_ConfigureEndpoint(CDC1_TX_EPNUM, EP_TYPE_BULK,

+		                             ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

+	

+	if (!(Endpoint_ConfigureEndpoint(CDC1_RX_EPNUM, EP_TYPE_BULK,

+		                             ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

+	

+	/* Setup CDC Notification, Rx and Tx Endpoints for the second CDC */

+	if (!(Endpoint_ConfigureEndpoint(CDC2_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,

+		                             ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

+	

+	if (!(Endpoint_ConfigureEndpoint(CDC2_TX_EPNUM, EP_TYPE_BULK,

+		                             ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

+	

+	if (!(Endpoint_ConfigureEndpoint(CDC2_RX_EPNUM, EP_TYPE_BULK,

+		                             ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

 }

 

 /** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific

diff --git a/Demos/Device/LowLevel/GenericHID/GenericHID.c b/Demos/Device/LowLevel/GenericHID/GenericHID.c
index a604bbe8d..40de8b94a 100644
--- a/Demos/Device/LowLevel/GenericHID/GenericHID.c
+++ b/Demos/Device/LowLevel/GenericHID/GenericHID.c
@@ -94,18 +94,24 @@ void EVENT_USB_Disconnect(void)
  */

 void EVENT_USB_ConfigurationChanged(void)

 {

-	/* Setup Generic IN Report Endpoint */

-	Endpoint_ConfigureEndpoint(GENERIC_IN_EPNUM, EP_TYPE_INTERRUPT,

-		                       ENDPOINT_DIR_IN, GENERIC_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

-	/* Setup Generic OUT Report Endpoint */

-	Endpoint_ConfigureEndpoint(GENERIC_OUT_EPNUM, EP_TYPE_INTERRUPT,

-		                       ENDPOINT_DIR_OUT, GENERIC_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

 	/* Indicate USB connected and ready */

 	LEDs_SetAllLEDs(LEDMASK_USB_READY);

+

+	/* Setup Generic IN Report Endpoint */

+	if (!(Endpoint_ConfigureEndpoint(GENERIC_IN_EPNUM, EP_TYPE_INTERRUPT,

+		                             ENDPOINT_DIR_IN, GENERIC_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

+	

+	/* Setup Generic OUT Report Endpoint */

+	if (!(Endpoint_ConfigureEndpoint(GENERIC_OUT_EPNUM, EP_TYPE_INTERRUPT,

+		                             ENDPOINT_DIR_OUT, GENERIC_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

 }

 

 /** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific

diff --git a/Demos/Device/LowLevel/Joystick/Joystick.c b/Demos/Device/LowLevel/Joystick/Joystick.c
index 94763b82a..0c018aa8d 100644
--- a/Demos/Device/LowLevel/Joystick/Joystick.c
+++ b/Demos/Device/LowLevel/Joystick/Joystick.c
@@ -92,13 +92,16 @@ void EVENT_USB_Disconnect(void)
  */ 

 void EVENT_USB_ConfigurationChanged(void)

 {

-	/* Setup Joystick Report Endpoint */

-	Endpoint_ConfigureEndpoint(JOYSTICK_EPNUM, EP_TYPE_INTERRUPT,

-		                       ENDPOINT_DIR_IN, JOYSTICK_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

 	/* Indicate USB connected and ready */

 	LEDs_SetAllLEDs(LEDMASK_USB_READY);

+

+	/* Setup Joystick Report Endpoint */

+	if (!(Endpoint_ConfigureEndpoint(JOYSTICK_EPNUM, EP_TYPE_INTERRUPT,

+		                             ENDPOINT_DIR_IN, JOYSTICK_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

 }

 

 /** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific

diff --git a/Demos/Device/LowLevel/Keyboard/Keyboard.c b/Demos/Device/LowLevel/Keyboard/Keyboard.c
index 06806b58b..35ef41ba8 100644
--- a/Demos/Device/LowLevel/Keyboard/Keyboard.c
+++ b/Demos/Device/LowLevel/Keyboard/Keyboard.c
@@ -118,19 +118,25 @@ void EVENT_USB_Disconnect(void)
  *  of the USB device after enumeration, and configures the keyboard device endpoints.

  */

 void EVENT_USB_ConfigurationChanged(void)

-{

-	/* Setup Keyboard Keycode Report Endpoint */

-	Endpoint_ConfigureEndpoint(KEYBOARD_EPNUM, EP_TYPE_INTERRUPT,

-		                       ENDPOINT_DIR_IN, KEYBOARD_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

-	/* Setup Keyboard LED Report Endpoint */

-	Endpoint_ConfigureEndpoint(KEYBOARD_LEDS_EPNUM, EP_TYPE_INTERRUPT,

-		                       ENDPOINT_DIR_OUT, KEYBOARD_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

+{	

 	/* Indicate USB connected and ready */

 	LEDs_SetAllLEDs(LEDMASK_USB_READY);

+

+	/* Setup Keyboard Keycode Report Endpoint */

+	if (!(Endpoint_ConfigureEndpoint(KEYBOARD_EPNUM, EP_TYPE_INTERRUPT,

+		                             ENDPOINT_DIR_IN, KEYBOARD_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

+	

+	/* Setup Keyboard LED Report Endpoint */

+	if (!(Endpoint_ConfigureEndpoint(KEYBOARD_LEDS_EPNUM, EP_TYPE_INTERRUPT,

+		                             ENDPOINT_DIR_OUT, KEYBOARD_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

 }

 

 /** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific

diff --git a/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c b/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c
index 9127fea9e..ddfe05a4b 100644
--- a/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c
+++ b/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c
@@ -100,23 +100,32 @@ void EVENT_USB_Disconnect(void)
  */

 void EVENT_USB_ConfigurationChanged(void)

 {

-	/* Setup Keyboard Report Endpoint */

-	Endpoint_ConfigureEndpoint(KEYBOARD_IN_EPNUM, EP_TYPE_INTERRUPT,

-		                       ENDPOINT_DIR_IN, HID_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

+	/* Indicate USB connected and ready */

+	LEDs_SetAllLEDs(LEDMASK_USB_READY);

 

+	/* Setup Keyboard Report Endpoint */

+	if (!(Endpoint_ConfigureEndpoint(KEYBOARD_IN_EPNUM, EP_TYPE_INTERRUPT,

+		                             ENDPOINT_DIR_IN, HID_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

+	

 	/* Setup Keyboard LED Report Endpoint */

-	Endpoint_ConfigureEndpoint(KEYBOARD_OUT_EPNUM, EP_TYPE_INTERRUPT,

-		                       ENDPOINT_DIR_OUT, HID_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

+	if (!(Endpoint_ConfigureEndpoint(KEYBOARD_OUT_EPNUM, EP_TYPE_INTERRUPT,

+		                             ENDPOINT_DIR_OUT, HID_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

 

 	/* Setup Mouse Report Endpoint */

-	Endpoint_ConfigureEndpoint(MOUSE_IN_EPNUM, EP_TYPE_INTERRUPT,

-		                       ENDPOINT_DIR_IN, HID_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

-	/* Indicate USB connected and ready */

-	LEDs_SetAllLEDs(LEDMASK_USB_READY);

+	if (!(Endpoint_ConfigureEndpoint(MOUSE_IN_EPNUM, EP_TYPE_INTERRUPT,

+		                             ENDPOINT_DIR_IN, HID_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

 }

 

 /** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific

diff --git a/Demos/Device/LowLevel/MIDI/MIDI.c b/Demos/Device/LowLevel/MIDI/MIDI.c
index 6dd38af85..856f7dbe9 100644
--- a/Demos/Device/LowLevel/MIDI/MIDI.c
+++ b/Demos/Device/LowLevel/MIDI/MIDI.c
@@ -90,17 +90,23 @@ void EVENT_USB_Disconnect(void)
  */

 void EVENT_USB_ConfigurationChanged(void)

 {

-	/* Setup MIDI stream endpoints */

-	Endpoint_ConfigureEndpoint(MIDI_STREAM_OUT_EPNUM, EP_TYPE_BULK,

-		                       ENDPOINT_DIR_OUT, MIDI_STREAM_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

-	Endpoint_ConfigureEndpoint(MIDI_STREAM_IN_EPNUM, EP_TYPE_BULK,

-		                       ENDPOINT_DIR_IN, MIDI_STREAM_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

 	/* Indicate USB connected and ready */

 	LEDs_SetAllLEDs(LEDMASK_USB_READY);

+

+	/* Setup MIDI stream endpoints */

+	if (!(Endpoint_ConfigureEndpoint(MIDI_STREAM_OUT_EPNUM, EP_TYPE_BULK,

+		                             ENDPOINT_DIR_OUT, MIDI_STREAM_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}	

+	

+	if (!(Endpoint_ConfigureEndpoint(MIDI_STREAM_IN_EPNUM, EP_TYPE_BULK,

+		                             ENDPOINT_DIR_IN, MIDI_STREAM_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

 }

 

 /** Task to handle the generation of MIDI note change events in response to presses of the board joystick, and send them

@@ -159,8 +165,9 @@ void MIDI_Task(void)
  */

 void SendMIDINoteChange(const uint8_t Pitch, const bool OnOff, const uint8_t CableID, const uint8_t Channel)

 {

-	/* Wait until endpoint ready for more data */

-	while (!(Endpoint_IsReadWriteAllowed()));

+	/* If endpoint ready for more data, abort */

+	if (!(Endpoint_IsReadWriteAllowed()))

+	  return;

 

 	/* Check if the message should be a Note On or Note Off command */

 	uint8_t Command = ((OnOff)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);

diff --git a/Demos/Device/LowLevel/MassStorage/MassStorage.c b/Demos/Device/LowLevel/MassStorage/MassStorage.c
index 62c7f21da..ee2a9d792 100644
--- a/Demos/Device/LowLevel/MassStorage/MassStorage.c
+++ b/Demos/Device/LowLevel/MassStorage/MassStorage.c
@@ -106,17 +106,23 @@ void EVENT_USB_Disconnect(void)
  */

 void EVENT_USB_ConfigurationChanged(void)

 {

+	/* Indicate USB connected and ready */

+	LEDs_SetAllLEDs(LEDMASK_USB_READY);

+

 	/* Setup Mass Storage In and Out Endpoints */

-	Endpoint_ConfigureEndpoint(MASS_STORAGE_IN_EPNUM, EP_TYPE_BULK,

+	if (!(Endpoint_ConfigureEndpoint(MASS_STORAGE_IN_EPNUM, EP_TYPE_BULK,

 		                       ENDPOINT_DIR_IN, MASS_STORAGE_IO_EPSIZE,

-	                           ENDPOINT_BANK_DOUBLE);

-

-	Endpoint_ConfigureEndpoint(MASS_STORAGE_OUT_EPNUM, EP_TYPE_BULK,

+	                           ENDPOINT_BANK_DOUBLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

+	

+	if (!(Endpoint_ConfigureEndpoint(MASS_STORAGE_OUT_EPNUM, EP_TYPE_BULK,

 		                       ENDPOINT_DIR_OUT, MASS_STORAGE_IO_EPSIZE,

-	                           ENDPOINT_BANK_DOUBLE);

-

-	/* Indicate USB connected and ready */

-	LEDs_SetAllLEDs(LEDMASK_USB_READY);

+	                           ENDPOINT_BANK_DOUBLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}							   

 }

 

 /** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific

diff --git a/Demos/Device/LowLevel/Mouse/Mouse.c b/Demos/Device/LowLevel/Mouse/Mouse.c
index 422153672..c586b5971 100644
--- a/Demos/Device/LowLevel/Mouse/Mouse.c
+++ b/Demos/Device/LowLevel/Mouse/Mouse.c
@@ -119,13 +119,16 @@ void EVENT_USB_Disconnect(void)
  */ 

 void EVENT_USB_ConfigurationChanged(void)

 {

-	/* Setup Mouse Report Endpoint */

-	Endpoint_ConfigureEndpoint(MOUSE_EPNUM, EP_TYPE_INTERRUPT,

-		                       ENDPOINT_DIR_IN, MOUSE_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

 	/* Indicate USB connected and ready */

 	LEDs_SetAllLEDs(LEDMASK_USB_READY);

+	

+	/* Setup Mouse Report Endpoint */

+	if (!(Endpoint_ConfigureEndpoint(MOUSE_EPNUM, EP_TYPE_INTERRUPT,

+		                             ENDPOINT_DIR_IN, MOUSE_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

 }

 

 /** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific

diff --git a/Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c b/Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c
index e651a1b12..84fc5b4c9 100644
--- a/Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c
+++ b/Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c
@@ -99,21 +99,30 @@ void EVENT_USB_Disconnect(void)
  */

 void EVENT_USB_ConfigurationChanged(void)

 {

-	/* Setup CDC Notification, Rx and Tx Endpoints */

-	Endpoint_ConfigureEndpoint(CDC_TX_EPNUM, EP_TYPE_BULK,

-		                       ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

+	/* Indicate USB connected and ready */

+	LEDs_SetAllLEDs(LEDMASK_USB_READY);

 

-	Endpoint_ConfigureEndpoint(CDC_RX_EPNUM, EP_TYPE_BULK,

-		                       ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

+	/* Setup CDC Notification, Rx and Tx Endpoints */

+	if (!(Endpoint_ConfigureEndpoint(CDC_TX_EPNUM, EP_TYPE_BULK,

+		                             ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}							   

 

-	Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,

-		                       ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

+	if (!(Endpoint_ConfigureEndpoint(CDC_RX_EPNUM, EP_TYPE_BULK,

+		                             ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

 

-	/* Indicate USB connected and ready */

-	LEDs_SetAllLEDs(LEDMASK_USB_READY);

+	if (!(Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,

+		                             ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

 }

 

 /** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific

diff --git a/Demos/Device/LowLevel/USBtoSerial/USBtoSerial.c b/Demos/Device/LowLevel/USBtoSerial/USBtoSerial.c
index ee4208f19..3ed406db4 100644
--- a/Demos/Device/LowLevel/USBtoSerial/USBtoSerial.c
+++ b/Demos/Device/LowLevel/USBtoSerial/USBtoSerial.c
@@ -113,21 +113,30 @@ void EVENT_USB_Disconnect(void)
  */

 void EVENT_USB_ConfigurationChanged(void)

 {

-	/* Setup CDC Notification, Rx and Tx Endpoints */

-	Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,

-		                       ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

-	Endpoint_ConfigureEndpoint(CDC_TX_EPNUM, EP_TYPE_BULK,

-		                       ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

-	Endpoint_ConfigureEndpoint(CDC_RX_EPNUM, EP_TYPE_BULK,

-		                       ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,

-	                           ENDPOINT_BANK_SINGLE);

-

 	/* Indicate USB connected and ready */

 	LEDs_SetAllLEDs(LEDMASK_USB_READY);

+

+	/* Setup CDC Notification, Rx and Tx Endpoints */

+	if (!(Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,

+		                             ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

+	

+	if (!(Endpoint_ConfigureEndpoint(CDC_TX_EPNUM, EP_TYPE_BULK,

+		                             ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}							   

+

+	if (!(Endpoint_ConfigureEndpoint(CDC_RX_EPNUM, EP_TYPE_BULK,

+		                             ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,

+	                                 ENDPOINT_BANK_SINGLE)))

+	{

+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

+	}

 }

 

 /** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific